http://en.m.wikipedia.org/wiki/Agoraphobia
Agoraphobia is an anxiety disorder characterized by anxiety in situations where the sufferer perceives certain environments as dangerous or uncomfortable, often due to the environment's vast openness or crowdedness. These situations include wide-open spaces, as well as uncontrollable social situations such as the possibility of being met in shopping malls, airports and on bridges. Agoraphobia is defined within the DSM-IV TR as a subset of panic disorder, involving the fear of incurring a panic attack in those environments.[1] In the DSM-5, however, agoraphobia is classified as being separate from panic disorder.[2] The sufferer may go to great lengths to avoid those situations, in severe cases becoming unable to leave their home or safe haven.
Basically, It is not a panic attack, it is fear of having a panic attack because of the situation you are in.
Variations:
* Yes
* No
